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I don't follow. Do you mean to say that the calculator would produce .333333333 repeating but the student was expected to write 1/3 ?
by sonograph 5y ago
I don't follow. Do you mean to say that the calculator would produce .333333333 repeating but the student was expected to write 1/3 ?
- azalemeth 5y agoI suspect think more along the lines of spitting out a numerical answer instead of sqrt(pi) when fed with \int_-\infty^\infty exp(-x^2) dx...
- VLM 5y agoThose reciprocals are too small. Lets see if the kids know how to multiply fractions: factorial(256) times ( 1 divided by factorial(256) ) equals ? And yes, there will unfortunately be kids trying to brute force it by typing it in instead of cancelling the factorial(256).
- voxic11 5y agoThe TI-89 comes with a excellent symbolic solver that can do solve this or any calc problem and give the proper symbolic result. It can even do things like equation simplification and give the results in terms of the variables. Looks like this https://imgur.com/a/FmdCyYU https://imgur.com/a/FmdCyYU
- deleted 5y ago[deleted]
- mmcgaha 5y agoSaying any calc problem is a stretch. Just pull up the MIT integration bee and see how many the 89 can get symbolic results for. I think the 89 is awesome for algebra because typing in an equation and doing an ans(1) with an operation will let you do the algebra process without making stupid arithmetic mistakes. I wish someone made a calculator that does this only and not one that does all the other CAS tricks for integration and derivatives. Oh and I wish they would make it RPN but that is a whole other story.
- jdmichal 5y agoYes, except not obvious and usually involving irrationals, so good luck figuring it out.